Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Kalshi Prediction Markets

Kalshi Prediction Markets, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/kalshi_mcp_server/tools/external_data.py, line 1 """Read-only external-data fetch (host-allowlisted, GET-only).

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/kalshi_mcp_server/cli.py, line 83 "Path to a .env file to load before reading config. If omitted, "

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    src/kalshi_mcp_server/config.py, line 138 key_id = os.environ.get("KALSHI_API_KEY_ID", "").strip()

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    uv.lock, line 1 version = 1

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/kalshi_mcp_server/tools/external_data.py, line 1

    """Read-only external-data fetch (host-allowlisted, GET-only).

    src/kalshi_mcp_server/tools/external_data.py, line 98

    _USER_AGENT = "kalshi-mcp-server external-data fetch (trading-agent measurement books)"

    src/kalshi_mcp_server/tools/external_data.py, line 100

    _WALL_CLOCK_SECONDS = 45.0 # hard cap for the whole fetch (anti slow-loris)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/kalshi_mcp_server/cli.py, line 83

    "Path to a .env file to load before reading config. If omitted, "

    src/kalshi_mcp_server/cli.py, line 84

    "we still look for a `.env` in the current working directory; "

    src/kalshi_mcp_server/config.py, line 138

    key_id = os.environ.get("KALSHI_API_KEY_ID", "").strip()

    Show more

    src/kalshi_mcp_server/cli.py, line 94

    """Load a .env file before resolving config.

    src/kalshi_mcp_server/cli.py, line 97

    - Otherwise, look for a `.env` in CWD and load it if present (no error

    src/kalshi_mcp_server/cli.py, line 100

    Values already in the environment win over .env entries (override=False).

    src/kalshi_mcp_server/cli.py, line 109

    cwd_env = Path.cwd() / ".env"

    src/kalshi_mcp_server/cli.py, line 118

    # Logging is configured AFTER env load so LOG_LEVEL from .env applies,

    src/kalshi_mcp_server/cli.py, line 319

    CLI auto-loads `./.env`, so an unrelated value must not break stdio.

    src/kalshi_mcp_server/config.py, line 146

    pem_path = os.environ.get("KALSHI_PRIVATE_KEY_PATH", "").strip() or None

    src/kalshi_mcp_server/config.py, line 147

    pem_text = os.environ.get("KALSHI_PRIVATE_KEY_PEM", "").strip() or None

    src/kalshi_mcp_server/oauth.py, line 248

    signing_key = os.environ.get("MCP_JWT_SIGNING_KEY", "").strip()

    src/kalshi_mcp_server/oauth.py, line 399

    jwt_signing_key=os.environ.get("MCP_JWT_SIGNING_KEY", "").strip() or None,

    src/kalshi_mcp_server/tools/scoring.py, line 195

    self.api_key = (os.environ.get("TYPESAFE_API_KEY") or "").strip()

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 1

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit 01f3d34545c4. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 01f3d34545c49eec4256e53f6349b94acdd540d1

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